This morning I bought a ringset for my new CZ and I can't tell you how happy I am with them not to mention because the alignment bars in the lapping set showed that they were as near to perfect as they could get. A few strokes with the long bar and #600 grit paper revealed full contact
FWIW, the website is www.sportsmatch-uk.com
I suppose it could have been beginner's luck but I'm impressed.
BTW, am I sorry I shelled out on the BRT lapping kit when it wasn't needed? No. There are a couple of other rifles I can try it out on